Shenzhen Juyi Science And Trade Co., Ltd.
                                                                                                           
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Electrical Equipment & Supplies Batteries Battery Management System(BMS)

3.7V 1S 20A BMS Lifepo4 Battery BMS PCB Board For 18650 Cell 4.2V Charging BMS

Price Negotiable
Price: $2.10/pieces 50-99 pieces
MOQ: 50 pieces
Delivery Time: Negotiable
Brand: ENERKEY
Product Description
3.7V Enerkey 1S 20A BMS Round PCB Board for 18650 Cell 4.2V Charging Base Material FR-4
 
 
Product Description
Electric Parameter
 
 
 
 
 
 
PCM Specifications For 3.7V(1S)Li-ion Battery Packs
 
 
 
 
 
 
Model:JW-B1S20A-075
 
 
 
 
 
 
NO.
Project
 
Min.
Typ.
Max.
Unit
 
1
 
voltage
Charging voltage
 
4.2
 
V
 
 
Balance voltage for single cell
/
/
/
V
2
Current
Balance current for single cell
 
 
/
mA
 
 
Current consumption
 
 
10
uA
 
 
Maximal continuous charging current
 
 
20
A
 
 
Maximal continuous discharging current
 
 
20
A
 
3
 
Over charge protection
Overcharge detection voltage for single cell
4.225
4.25
4.275
A
 
 
Overcharge detection delay time
0.5
 
1.5
S
 
 
Overcharge release voltage  for single cell
4.00
4.05
4.100
V
 
 
4
 
Over discharge protection
Overdischarge detection voltage for single cell
2.438
2.50
2.562
V
 
 
Overdischarge detection delay time
10
 
150
mS
 
 
Overdischarge release voltage for single cell
2.938
3.000
3.062
V
 
 
 
 
5
 
 
 
Overcurrent protection
Over current detection voltage
0.185
0.2
0.215
V
 
 
Over current detection current
50
60
70
A
 
 
Detection delay time 
7.2
 
11
mS
 
 
Release condition
Cut load
 
 
 
 
 
6
 
 
Short protection
Detection condition
Exterior short circuit
 
 
 
 
 
Detection delay time
200
 
500
μS
 
 
Release condition
Cut load
 
 
 
7
Resistance
Protection circuitry (MOSFET)
 
 
20
 
8
Temperature 
Operating Temperature Range
-40
 
85
 
 
Storage Temperature Range
-40
 
125
Product Use Tutorial
matters need attention
1.Connect Battery B- with BMS B- firstly! 2.Connect Battery 1 with the BMS as the picture shows. (Please weld the wires in order
and avoid pseudo solder joints.) 3.Connect Charger C-/Load P- with BMS C-/P-?(Use larger size wires) 4.Connect Positive Pole:
Charger C+/Load P+ with Battery Pack B+ (Use larger size wires) . Pay attention to make insulation.
FAQ

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Company Shenzhen Juyi Science And Trade Co., Ltd.
Location Area A, 9th Floor, Building G, Guancheng Low Carbon Industrial Park, Shangcun Community, Gongming Street, Guangming District, Shenzhen, China, 518106
Contact Person Kiwi Xiao

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